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Understanding Decimal Expansions of Rational Numbers
Worksheet
Grade Level
Grade 8
8.2 Understanding Decimal Expansions of Rational Numbers
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Which conclusion is justified about 0.124124124... and 0.1241241124...?
A
Both are rational because they both start with 124.
B
The first is rational because it repeats; the second is not shown repeating, so it should not be assumed rational.
C
The first is irrational and the second is rational.
D
Both terminate because they use only the digits 1, 2, and 4.
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